Download Makita 2-SPEED HAMMER 8401 Instruction manual

2-Speed Hammer Drill
13 mm (112”) MODEL 8401
Variable Speed I Reversing
INSTRUCTION MANUAL
DOUBLE
INS ULAT ION
SPECIFICATI0 NS
Capacities
Speed
Steel
High
:.;$,:
Low
1 3 mm
(,/2”)
Wood
:&:
30 mm
,l-l/8r,)
Concrete
No load speed
(RPMI
0 - 2,800
1 3 mm
(1/2“]
0
~
1,100
Blows
per minute
0
0
~
~
Overall
length
Net
weight
3 1 0 mm
2.2 kg
(4.5 Ibsl
30,800
12,100
( 12-7/32”)
* Manufacturer reserves the right t o change specifications without notice.
* Note: Specifications may differ from country t o country.
IMPORTANT
SAFETY INSTRUCTIONS
(For All Tools)
WARNING: WHEN USING ELECTRIC TOOLS, BASIC SAFETY
PRECAUTIONS SHOULD ALWAYS BE FOLLOWED TO REDUCE
THE RISK OF FIRE, ELECTRIC SHOCK, AND PERSONAL
INJURY, INCLUDING THE FOLLOWING:
READ ALL INSTRUCTIONS.
1. KEEP WORK AREA CLEAN. Cluttered areas and benches invite injuries.
2. CONSIDER WORK AREA ENVIRONMENT. Don't use power tools in damp
or wet locations. Keep work area well lit. Don't expose power tools t o rain.
Don't use tool in presence of flammable liquids or gases.
3. KEEP CHILDREN AWAY. All visitors should be kept away from work area.
Don't let visitors contact tool or extension cord.
4.STORE IDLE TOOLS. When not in use, tools should be stored in dry, and high
or locked-up place - out of reach of children.
5 . DON'T FORCE TOOL. It will do the job better and safer at the rate for which
it was intended.
6 . USE RIGHT TOOL. Don't force small tool or attachment t o do the job of a
heavy-duty tool. Don't use tool for purpose not intended; for example, don't
use circular saw for cutting tree limbs or logs.
7 . DRESS PROPERLY. Don't wear loose clothing or jewelry. They can be caught
in moving parts. Rubber gloves and non-skid footwear are recommended
when working outdoors. Wear protective hair covering to contain long hair.
8.USE SAFETY GLASSES. Also use face or dust mask if cutting operation is
dusty.
9.DON'T ABUSE CORD. Never carry tool by cord or yank it to disconnect from
receptacle. Keep cord from heat, oil, and sharp edges.
SECURE
WORK. Use clamps or a vise t o hold work. It's safer than using
IO.
your hand and it frees both hands t o operate tool.
1 1 . DON'T OVERREACH. Keep proper footing and balance at all times.
12. MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean for better and
safer performance. Follow instructions for lubricating and changing accessories. Inspect tool cords periodically and if damaged, have repaired by authorized service facility. Inspect extension cords periodically and replace if
damaged. Keep handles dry, clean, and free from oil and grease.
13. DISCONNECT TOOLS. When not in use, before servicing, and when changing accessories, such as blades, bits, cutters.
2
14. REMOVE ADJUSTING KEYS AND WRENCHES. Form habit of checking t o
see that keys and adjusting wrenches are removed from tool before turning
it on.
15. AVOID UNINTENTIONAL STARTING. Don't carry tool with finger on switch.
Be sure switch is OFF when plugging in.
16. EXTENSION CORDS. Make sure your extension cord is in good condition.
When using an extension cord, be sure t o use one heavy enough t o carry
the current your product will draw. An undersized cord will cause a drop
in line voltage resulting in loss of power and overheating. Table 1 shows the
correct size t o use depending on cord length and nameplate ampere rating.
If in doubt, use the next heavier gage. The smaller the gage number, the
heavier the cord.
TABLE 1
MINIMUM GAGE FOR CORD SETS
~~
~
~
Total Length of Cord in Feet
0-25
I
26
- 50
Ampere Rating
More
Not More
Than
Than
0
6
10
12
-
-
6
10
12
16
I
51 - 100
I
101 - 150
AWG
18
18
16
14
16
16
16
12
;:
I
14
12
14
12
Not Recommended
3
VOLTAGE WARNING: Before connecting the tool to a power source (receptacle,
outlet, etc.) be sure the voltage supplied is the same as that specified on t h e
nameplate of the tool. A power source with voltage greater than that specified
for the tool can result in SERIOUS INJURY to the user - as well as damage t o
the tool. If in doubt, DO NOT PLUG IN THE TOOL. Using a power source with
voltage less than the nameplate rating is harmful to the motor.
ADDITIONAL SAFETY RULES
1. Wear a hard hat (safety helmet), safety glasses and/or face shield. It is also
highly recommended that you wear a dust mask, ear protectors and thickly
padded gloves.
2. Under normal operation, the tool is designed t o produce vibration. The screws
can come loose easily, causing a breakdown or accident. Check tightness of
screws carefully before operation.
3. Always be sure you have a firm footing.
Be sure no one is below when using the tool in high locations.
4. Hold the tool firmly with both hands. Always use the side grip.
5. Keep hands away from rotating parts.
6. Do not leave the tool running. Operate the tool only when hand-held.
7. When drilling into walls, floors or wherever "live" electrical wires may be
encountered, DO NOT TOUCH ANY METAL PARTS OF THE TOOL!
Hold the tool by the insulated grasping surfaces t o prevent electric shock if
you drill into a "live" wire.
8. Do not touch the bit or the workpiece immediately after operation; they may
be extremely hot and could burn your skin.
SAVE THESE INSTRUCTIONS.
4
Installing side grip (auxiliary handle)
The side grip is an important means of maintaining good control of this hammer drill
during use in the even bit or accessory jams, causing the tool twist from your hand with
the potential t o cause injury. Loosen the wing nut on the side grip and install the side grip
on the tool. The side grip swings around t o either side, allowing easy handling of the tool
in any position. Swing the side grip t o the desired position and then tighten the wing nut
t o secure the side grip.
Installing or removing drill bit
CAUTION :
Always be sure that the tool i s switched off and unplugged before installing or removing
the bit.
To install the bit, place it in the chuck as
far as it will go. Tighten the chuck by hand.
Place the chuck key in each of the three
holes and tighten clockwise. Be sure t o
tighten all three chuck holes evenly.
To remove the bit, turn the chuck key
counterclockwise in just one hole, then
loosen the chuck by hand.
After using the chuck key, be sure to return it t o the original position.
Depth gauge
The depth gauge i s convenient for drilling
holes of uniform depth. Loosen the wing
bolt and adjust the depth gauge to the desired depth. After adjusting, tighten the
wing bolt t o secure the depth gauge.
5
Switch action
Tool speed i s increased by increasing pressure on the trigger. To start the tool,
simply pull the trigger. Release the trigger
to stop. For continuous operation, pull the
trigger and then push in the lock button.
To stop the tool while in the locked position, pull the trigger fully, then release it.
A speed control screw is provided so that
tool speed can be maintained a t a constant
speed other than i t s maximum speed. Turn
the speed control screw clockwise for
higher speed, and counterclockwise for
lower speed.
Trigger
switch L
O
button
11 4
~
CAUTION :
Before plugging in the tool, always check t o see that the trigger switch actuates properly
and returns t o the "OFF" position when released.
Reversing switch action
This tool has a reversing switch to change
the direction of rotation. Move the reversing switch lever t o the "FWD" position for
clockwise rotation or the "REV" position
for counterclockwise rotation.
Reversing switch lever
CAUTION :
Always check the direction of rotation before operation.
*Use the reversing switch only after the tool comes t o a complete stop. Changing the
direction of rotation before the tool stops may damage the tool.
Speed change
A gear shift mechanism allows tool operation within two versatile speed ranges. For
higher speeds, turn the speed change lever
so that i t s A mark is aligned with the "11"
mark on the tool body. For lower speeds,
turn the speed change lever so that i t s A
mark is aligned with the "I" mark on the
tool body.
6
Speed change lever
/
Action mode
Action mode changing button
This tool employs action mode changing
buttons. For rotation only, press the
button on the SXmark side fully.
For rotation with hammering action, press
the button on the c mark side fully.
CAUTION :
Be sure to press the action mode changing button as far as it will go, Failure t o do so may
cause malfunction of the tool.
Operation
1 ) Hammer drilling operation
When drilling in concrete, granite, tile, etc., press the button on the c mark side
fully. Be sure t o use a tungsten-carbide tipped bit. Do not apply more pressure when
the hole becomes clogged with chips or particles. Instead, run the tool a t an idle, then
remove the bit partially from the hole. By repeating this several times, the hole will be
cleaned out.
2 ) Drilling operation
When drilling in wood, metal or plastic materials, press the button on the
mark
side fully. Generally, select higher speeds for smaller diameter bits and lower speeds
for larger diameter bits.
0
D r i l l i n g in wood
When drilling in wood, best results are obtained with wood drills equipped with a
guide screw. The guide screw makes drilling easier by pulling the bit into the workpiece.
Drilling in metal
To prevent the bit from slipping when starting a hole, make an indentation with a
centerpunch and hammer a t the point t o be drilled. Place the point of the bit in the
indentation and start drilling. Use a cutting lubricant when drilling metals. The exceptions are iron and brass which should be drilled dry.
7
CAUTION :
.Pressing excessively on the tool will not speed up the drilling. In fact, this excessive
pressure will only serve t o damage the tip of your bit, decrease the tool performance
and shorten the service life of the tool.
0
0
0
There is a tremendous twisting force exerted on the tool/bit a t the time of hole breakthrough. Hold the tool firmly and exert care when the bit begins t o break through
the workpiece. Use both hands to help control the tool. Be sure to use the side grip
(auxiliary handle) t o maintain proper control.
A stuck bit can be removed simply by setting the reversing switch to reverse rotation
in order to back out. However, the tool may back out abruptly i f you do not hold it
firmly.
Always secure small workpieces in a vise or similar hold-down device.
*The use of wire brushes and other accessories on this tool may easily cause jamming,
pinching or binding whereby the tool could be twisted unsafely from your hands.
8
MAINTENANCE
CAUTION :
Always be sure that the tool is switched off and unplugged before attempting to perform
inspection or maintenance.
To maintain product SAFETY and RELlABl LITY, repairs, carbon brush inspection and
replacement, any other maintenance or adjustment should be performed by Makita
Authorized or Factory Service Centers, always using Makita replacement parts.
9
ACCESSORIES
CAUTION :
These accessories or attachments are recommended for use with your Makita tool specified in this
manual. The use of any other accessories or attachments might present a risk of injury to persons. The
accessories or attachments should be used only in the proper and intended manner.
0
Tungsten-carbide tipped
(hammer) bit
Part No.
711120-A
I
1
Bit diameter
3/16'
114"
711121-A
0
Part No. 321059-7
I Overall length
I
4"
4"
71 1122-A
114"
6'
71 1123-A
5116'
6'
711124-A
I
318"
6"
711125-A
I
112"
6'
71 1128-A
1/4'
71 1129-A
71 1130-A
318"
112"
0
Chuck key
Part No. 76341 1-7
0
Grip
Part No. 273627-1
10
Depth gauge
0
Blow-out bulb
Part No. 765009-6
4
.Steel carrying case
13'
Part No. 182463-3
Aug - 2 8 - ' 9 1
EN
13 mm (1/2")
2-SPEED HAMMER DRILL
Model 8401
Note: The switch, noise suppressor and other part configurations
may differ from country t o country.
11
iv MODEL 8401
1
2
3
4
5
6
7
8
9
11
12
13
14
15
16
17
lB
19
20
21
22
23
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
A\ug.-28-'91
Name Plate
Housing Set (With Item 361
Cord Guard
Cord
Switch
Strain Relief
Pan Head Screw M4x18 [With Washer!
Carbon Brush
Switch
Cam Holder
Steel Ball 4 8
cam B
Washer 13
Cup Washer 13
Compression Spring 25
Spur Gear 4 1
Ring 2 4
Spur G e m 32
Plane Bearing 13
Compression Spring 2 5
Cup Washer 13
Ball Bearing 6202LLB
24
25
33
1
1
1
1
1
1
1
1
1
1
34
1
35
1
1
1
1
1
1
1
1
1
9
26
27
28
29
30
31
32
36
37
38
39
40
41
42
43
44
- -
US
Spindle
Drill Chuck S13
Flat Head Screw M6x22
Pl" 5 5
Ball Bearing 6262
Gear Complete 9 - 1 8 - 3 4
Ball Bearing 6262
Ball Bearing 608LB
Fan 52
ARMATURE ASSEMBLY
[With Item 31 - 34!
Ball Bearing 627L8
Field
Housing Set [With Item 21
Shifter Rod
Push Button
Steal Ball 6 4
Gear Shift Pin
Gear Shift Lever
Flat Head Screw M14x12
Push Button
Pan Head Screw M4x22 [With Washer!
Note: The switch and other part specifications may differ from country to country
MAKmA LIMED ONE YEAR WARRANTY
Warranty Policy
t very Hakiia tool 15 thoroughly inspected and tested before leaving the factory 11 15 warranted IO
be free of defects from workmanship and malenals lor the pcnod of ONL YEAR from the d u e o l
ongnrl purchase Should any trouble develop dunng thts one-year penod. return the CVMPLLTt
1001. frctght prepmd. to onc of Maluta'r Factory or Authonzcd Sernce Centers If i n s p ~ ~ t i oshous
n
thc trouhle IS caused by d e l e a r c uorkmanship or matcnal. Makita wll repar tor st our option.
replace) wrthout charge
This Warranty docs not apply where
repslrs have been made or attempted by others
repvrs arc required because of normal WPBT and tear
The t w I has been abused. misused 01 lmprODerlV marntuned.
alterations haw been made IO the tool
IN '10t V k N T SHALL MAKITA Bk LIABLI FOR ANY INDIRLCT. INCIDNTAL OR CON
SFQUFNTIAL DAMAGFS FROM T H t SALt OR U S t OF THE PRODUCT THIS DlSCLAlMtR
APPLIES BOTH DURING AND AtTLR THE TERH OF THIS WARRANTY
MAKITA DISCLAIMS LIABILITY FOR ANY IMPLIED WARRANTIES, INCLUDING IMPLIED
WARRANTIES OF "MERCHANTABILITY" AND "FITNESS FOR A SPECIFIC PURPOSE,"
AFTER THE ONE-YEAR TERM OF THIS WARRANTY.
This Warranty gives you specific legal rights, and you may also have other rights which vary front
state to state. Some states do not allow the exclusion or limitation of lncidentzl or consequential
damages, so the above limitation or exclusion may not apply to you. Some states do not allow
limitation on how long an implied warranty lasts, so the above limitation may not apply to you.
Makita Corporation
3-11-8, Sumiyoshi-cho,
Anjo, Aichi 446 Japan
883797A066
PRINTED IN JAPAN
1993 - 4 - N